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jolli1 [7]
4 years ago
12

Which number sentence is always true?

Mathematics
2 answers:
Musya8 [376]4 years ago
7 0

Answer:

Statement B is always correct

Sati [7]4 years ago
6 0

Answer:

B.

Step-by-step explanation:

It is not A because you can say 1 - 2 and those numbers are both positive and your answer for that would be -1 which is a negative number.

You know its B because say -7 + -7 which is -14 so any negative number plus any other negative number results would also be a negative number.

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Find the volume of the prism.
Rudik [331]

Answer:

216 cubic meters

Step-by-step explanation:

to find the volume of any prism the equation is bh or base times height

the base is a triangle so you find the triangles area and multiply it by the height

8 * 6 * 1/2 = 24

24 * 9 = 216

216 cubic meters

6 0
3 years ago
What is the sum of the first 30 terms in a(n)=4n+1
dimulka [17.4K]
Hello,

\sum _{i=1} ^{30}(a_i)=\sum _{i=1} ^{30}(4*i+1)\\

=4*\sum _{i=1} ^{30}(i) +\sum _{i=1} ^{30}(1)\\

=4* \dfrac{31*30}{2} + 30 =1860+30=1890
6 0
3 years ago
How do you solve this
loris [4]
Using the edge lengths already given, I calculated the height of the right side of the irregular octagon by adding the heights on the left. Since they added to 9m, then I put 9 on the edge with a missing height. To find the missing length, I subtracted the quantity of 6+6 from 18 (you can also divide 18 by 3) to get 6. Now that I know all the lengths, I can add them to get the perimeter. Since 3+3+3+6+6+6+9+18, or (3*3)+(6*3)+9+18 is equal to 54, our answer is 54.
7 0
3 years ago
Can someone help me with this? (statistics) (Dot plot) you need to answer I,J,K, and L. Pls help ASAP
adell [148]

Answer:

K is class A and L is 40%.

Step-by-step explanation:

4 0
3 years ago
To round to the nearest ten should you <br> Round up or down
igor_vitrenko [27]
It depends whether the ones place is 5 or up. If it is you would round up. For example 36 would round to 40.
Now if it is less than 4 you would round down, for example 33 would be rounded to 30.
6 0
4 years ago
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